The old StoryMap templates used to allow a map action to be configured that would display a map pop-up when the user clicked on a link/button. This functionality is no longer available since moving to the new StoryMap Builder.
It would be great if this functionality could be added to the media actions, so that the map can be zoomed in, layers turned on/off and the map pop-up displayed all at once with a single click.
This has been raised before, but it has been marked as solved in the previous thread (see below). From what I can tell, the functionality doesn't seem to exist as yet.
Solved: Re: Display popup as 'opened' in mapview - Esri Community
It has also been requested a couple of times throughout this thread:
More Map Actions styles - Esri Community
Thanks for your consideration.